Blue repulsive potential for dysprosium Bose-Einstein condensates
Year: 2024
Authors: Preti N., Antolini N., Biagioni G., Fioretti A., Modugno G., Tanzi L., Gabbanini C.
Autors Affiliation: Univ Firenze, Dipartimento Fis & Astron, Florence, Italy; Univ Firenze, European Lab Nonlinear Spect, Florence, Italy; Italian Nazl Ottica, Consiglio Nazl Ric, Sede Secondaria Pisa, Pisa, Italy.
Abstract: Short-wavelength repulsive potentials for quantum gases allow one to realize new systems and to study new phenomena. Here we report the realization of repulsive optical potentials for dysprosium atoms in the blue region of the spectrum, at wavelengths close to 400 nm. We employ a spectrally filtered diode laser system to measure both scalar and tensorial components of the polarizability of dysprosium, which we find in good agreement with the theoretical predictions. We demonstrate the implementation of potential strengths appropriate to manipulate Bose-Einstein condensates, with scattering-limited lifetimes exceeding 1 s. This type of optical potential opens interesting directions for the study of dipolar superfluids and supersolids.
Journal/Review: PHYSICAL REVIEW A
Volume: 110 (2) Pages from: 23307-1 to: 23307-7
More Information: This work was funded by the European Union (European Research Council, SUPERSOLIDS, Grant No. 101055319) and by the QuantERA program, project MAQS, under Grant No. 101017733, with funding organization Consiglio Nazionale delle Ricerche. We acknowledge support from the European Union, NextGenerationEU, for the Integrated In-frastructure initiative in Photonics and Quantum Sciences (I-PHOQS Grant No. IR0000016, ID Grant No. D2B8D520, and CUP Grant No. B53C22001750006) and for PNRR MUR Project NQSTI-PNNR-PE4 No. PE0000023. Technical as-sistance from A. Barbini, F. Pardini, M. Tagliaferri, and M. Voliani is gratefully acknowledged.KeyWords: Quantum; LocalizationDOI: 10.1103/PhysRevA.110.023307